Brazil on a Swiss Licence — IDP Required & a Zero-Alcohol Lei Seca

Switzerland and Brazil both drive on the right, so the muscle-memory part of a Brazilian road trip is easy for Swiss visitors — no junction-reflex retraining, no mirror confusion. The two things that actually catch Swiss drivers are the permit Brazil insists on and an alcohol rule with no margin whatsoever.

Start with the paperwork, because it is the one thing you cannot fix once you land. Brazil requires an International Driving Permit carried together with your Swiss licence and passport. It is not a formality you can wave away at the rental counter — staff routinely ask for it, and a traffic stop without one turns a five-minute check into a problem. Arrange the IDP in Switzerland before departure; it cannot be issued locally. Run your documents through the Driving Permit Checker if you want confirmation for your exact case.

The bigger behavioural shift is drink. At home you have a 0.05 working limit; Brazil’s Lei Seca has enforced near-zero tolerance since 2012, and it is taken seriously. A single beer with dinner can put you over and trigger a substantial fine, vehicle seizure and, in clear cases, arrest. There is no “one and drive carefully” here — if you are driving, you do not drink at all. Roadblock breath-testing (the blitz) is common at night and on weekends in the cities.

On the road itself, the limits sit a touch below what you are used to: 60 km/h in towns, 80 on rural roads and 110 km/h on motorways, against your 120 at home. Toll motorways are well surfaced, but rural and secondary roads can be rough, and local driving is more assertive — expect tighter overtaking and less lane discipline. Speed enforcement is real; a 10 km/h overshoot is roughly BRL 130 (≈ €22) plus points. The Speeding Fine Calculator gives you a sense of the bands before you go.

A few practical notes. Fuel runs about $1.15/litre, and many cars are flex-fuel — ethanol (álcool) is cheaper but gives lower range than petrol (gasolina), so do the maths at the pump. The emergency number is 190 for police, 192 for ambulance. Keep your licence, IDP and the car’s documents within reach at all times. For the full rule set, our Brazil driving guide has the detail.